June is one of the warmer months of the year in Sylvan Lake, with average highs near 19.4°C and lows around 7.7°C (mean 13.6°C). It is a relatively wet time of year, averaging 103 mm of rainfall and 69% relative humidity across the period.
June is one of the warmer months of the year in Sylvan Lake. Across 45 years of records, the warmest June in Sylvan Lake was 2021 — when the month averaged 17.3°C — while the coldest was 1981 at 11.1°C. Typical June days reach 19.4°C with nights near 7.7°C. The long-term trend is warming, about 0.2°C per decade.
June is a relatively wet time of year in Sylvan Lake, averaging 103 mm of rainfall. The wettest June on record was 2022 with 184 mm, while the driest was 2002 at 28 mm.
Relative humidity in Sylvan Lake during June averages 69%. The most humid June was 2005 at 77%, and the least humid was 1987 at 56%.
June receives about 5.9 kWh/m²/day of solar energy in Sylvan Lake. The sunniest June was 2021 at 6.7 kWh/m²/day, and the cloudiest was 2005 at 5.
Average wind speed in Sylvan Lake during June is 2.3 m/s. The windiest Junes were 1985 and 1993 at 2.7 m/s, while the calmest were 1981, 2002 and 2010 at 1.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.6°C | 13.3°C | 13.2°C | 13.6°C | 14.3°C | +0.7°C |
| Avg High | 19.9°C | 19.1°C | 18.9°C | 19.3°C | 20.1°C | +0.2°C |
| Avg Low | 7.4°C | 7.5°C | 7.5°C | 8.0°C | 8.5°C | +1.1°C |
| Avg Rain | 95 mm | 99 mm | 102 mm | 106 mm | 116 mm | +22 mm |
June temperatures in Sylvan Lake have risen by about 2.2°C between 1981–1985 and 2021–2025.
June has ranged from a record low of -0.4°C (2010) to a record high of 35.6°C (2021).
Rainfall in June is a relatively wet time of year, averaging 103 mm, with a wettest year of 184 mm.
One of the best times to visit Sylvan Lake
June is one of the best times to visit Sylvan Lake. Expect days averaging 19.4°C and nights around 7.7°C (mean 13.6°C) — warmer than Sylvan Lake's yearly average — with higher rainfall (103 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.3°C | 13.6°C | 8.0°C | 26.0°C | 2.4°C | 96 mm | 69% | 2.2 m/s | 6.4 |
| 2024 | 18.8°C | 12.8°C | 6.8°C | 25.7°C | 2.1°C | 66 mm | 65% | 2.5 m/s | 6 |
| 2023 | 21.8°C | 15.5°C | 9.2°C | 31.7°C | 3.2°C | 140 mm | 68% | 2.4 m/s | 6 |
| 2022 🌧️ | 18.4°C | 13.3°C | 8.3°C | 23.7°C | 4.5°C | 184 mm | 75% | 2.5 m/s | 5.4 |
| 2021 🔥 | 23.8°C | 17.3°C | 10.7°C | 35.6°C | 3.7°C | 63 mm | 62% | 2.3 m/s | 6.7 |
| 2020 | 18.7°C | 13.5°C | 8.2°C | 24.8°C | 4.0°C | 149 mm | 74% | 2.2 m/s | 5.9 |
| 2019 | 17.7°C | 12.8°C | 7.8°C | 25.0°C | 2.1°C | 154 mm | 76% | 2.4 m/s | 5.5 |
| 2018 | 20.4°C | 14.5°C | 8.7°C | 25.8°C | 4.8°C | 82 mm | 64% | 2.3 m/s | 6.4 |
| 2017 | 19.6°C | 13.9°C | 8.1°C | 27.8°C | 4.1°C | 120 mm | 72% | 2.6 m/s | 6.3 |
| 2016 | 21.2°C | 15.2°C | 9.3°C | 29.5°C | 3.5°C | 60 mm | 65% | 2.2 m/s | 6.3 |
| 2015 | 21.7°C | 15.4°C | 9.1°C | 31.2°C | 3.1°C | 68 mm | 63% | 2.1 m/s | 6.2 |
| 2014 | 17.9°C | 12.4°C | 6.9°C | 24.2°C | 0.5°C | 103 mm | 71% | 2.3 m/s | 6 |
| 2013 | 18.6°C | 13.2°C | 7.8°C | 25.5°C | 1.6°C | 121 mm | 75% | 2.3 m/s | 5.6 |
| 2012 | 19.6°C | 13.8°C | 8.1°C | 24.9°C | 4.4°C | 108 mm | 70% | 2.6 m/s | 5.3 |
| 2011 | 17.8°C | 12.4°C | 7.0°C | 24.4°C | 0.9°C | 141 mm | 74% | 2.2 m/s | 5.5 |
| 2010 | 18.0°C | 12.3°C | 6.7°C | 25.4°C | -0.4°C | 109 mm | 71% | 1.9 m/s | 5.9 |
| 2009 | 18.7°C | 12.6°C | 6.4°C | 24.2°C | 0.6°C | 65 mm | 62% | 2 m/s | 6.3 |
| 2008 | 18.0°C | 12.5°C | 7.1°C | 29.4°C | 3.8°C | 112 mm | 73% | 2 m/s | 5.9 |
| 2007 | 18.8°C | 13.4°C | 8.1°C | 26.1°C | 2.3°C | 141 mm | 75% | 2 m/s | 6 |
| 2006 | 20.6°C | 15.0°C | 9.3°C | 29.6°C | 3.5°C | 88 mm | 69% | 2.4 m/s | 6.3 |
| 2005 | 17.1°C | 12.1°C | 7.2°C | 26.1°C | 4.2°C | 159 mm | 77% | 2.2 m/s | 5 |
| 2004 | 19.0°C | 13.2°C | 7.5°C | 25.9°C | 4.0°C | 95 mm | 68% | 2.3 m/s | 6.1 |
| 2003 | 18.5°C | 13.0°C | 7.4°C | 27.6°C | 4.5°C | 104 mm | 74% | 2.5 m/s | 5.8 |
| 2002 | 22.0°C | 15.4°C | 8.9°C | 33.2°C | 3.5°C | 28 mm | 59% | 1.9 m/s | 6.3 |
| 2001 | 18.4°C | 12.7°C | 6.9°C | 25.9°C | 3.3°C | 104 mm | 66% | 2.3 m/s | 5.4 |
| 2000 | 18.3°C | 12.2°C | 6.1°C | 25.2°C | 1.0°C | 127 mm | 69% | 2.2 m/s | 5.8 |
| 1999 | 18.1°C | 12.4°C | 6.6°C | 24.6°C | 1.4°C | 72 mm | 68% | 2 m/s | 5.9 |
| 1998 | 18.5°C | 13.1°C | 7.6°C | 27.3°C | 1.1°C | 143 mm | 68% | 2.2 m/s | 5.9 |
| 1997 | 19.2°C | 13.8°C | 8.5°C | 23.7°C | 3.5°C | 108 mm | 71% | 2.3 m/s | 5.9 |
| 1996 | 18.6°C | 12.6°C | 6.5°C | 27.3°C | 1.7°C | 83 mm | 68% | 2.4 m/s | 5.6 |
| 1995 | 21.2°C | 14.7°C | 8.3°C | 26.3°C | 1.8°C | 53 mm | 62% | 2.2 m/s | 5.8 |
| 1994 | 19.2°C | 13.2°C | 7.1°C | 26.4°C | 1.1°C | 125 mm | 70% | 2.3 m/s | 5.7 |
| 1993 | 19.3°C | 13.2°C | 7.1°C | 25.3°C | 2.5°C | 90 mm | 63% | 2.7 m/s | 5.6 |
| 1992 | 20.2°C | 14.4°C | 8.6°C | 30.4°C | 4.4°C | 68 mm | 69% | 2.4 m/s | 5.6 |
| 1991 | 17.8°C | 12.5°C | 7.2°C | 23.2°C | 3.1°C | 124 mm | 72% | 2 m/s | 5.7 |
| 1990 | 18.6°C | 13.0°C | 7.5°C | 25.4°C | 2.8°C | 121 mm | 73% | 2.4 m/s | 5.8 |
| 1989 | 20.3°C | 14.2°C | 8.0°C | 28.9°C | 4.5°C | 110 mm | 66% | 2.4 m/s | 6.3 |
| 1988 | 24.0°C | 16.6°C | 9.3°C | 31.4°C | 4.0°C | 117 mm | 59% | 2.3 m/s | 5.6 |
| 1987 | 23.5°C | 16.2°C | 9.0°C | 29.7°C | 3.6°C | 59 mm | 56% | 2.6 m/s | 6.2 |
| 1986 | 20.4°C | 13.9°C | 7.4°C | 30.0°C | 3.5°C | 94 mm | 65% | 2.3 m/s | 6.2 |
| 1985 | 18.8°C | 12.0°C | 5.1°C | 28.1°C | 0.1°C | 55 mm | 62% | 2.7 m/s | 6.4 |
| 1984 | 18.3°C | 12.5°C | 6.7°C | 27.0°C | 1.9°C | 86 mm | 71% | 2.1 m/s | 5.6 |
| 1983 | 17.9°C | 12.6°C | 7.4°C | 23.9°C | 3.9°C | 109 mm | 73% | 2.3 m/s | — |
| 1982 | 19.2°C | 13.5°C | 7.9°C | 26.6°C | 0.3°C | 157 mm | 74% | 2 m/s | — |
| 1981 ❄️ | 16.6°C | 11.1°C | 5.5°C | 23.8°C | 2.6°C | 67 mm | 70% | 1.9 m/s | — |
Actual recorded June data for each year, 1981–2025 — sourced from NASA POWER.
The average high in June is around 19.4°C with lows near 7.7°C (mean 13.6°C), based on 45 years of NASA POWER data.
June averages 103 mm of rainfall in Sylvan Lake, a relatively wet time of year. The wettest on record was 184 mm in 2022.
The hottest June reached 35.6°C in 2021. The coldest dipped to -0.4°C in 2010.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average June temperatures have risen by about 2.2°C. Daytime highs moved from 18.2°C to 20.4°C and overnight lows from 6.5°C to 8.6°C over the same span.
June is one of the warmer months of the year in Sylvan Lake and a relatively wet time of year, so plan for around 19.4°C daytime highs and 7.7°C at night.
Not quite — June is the 10th coolest month in Sylvan Lake, averaging 13.6°C.
For June in Sylvan Lake, pack warm layers and a jacket for chilly mornings, with typical highs of 19.4°C and lows of 7.7°C. Bring an umbrella or light rain jacket too.
Relative humidity in June averages 69% — moderately humid.
Average wind speed in June is 2.3 m/s. The windiest June on record averaged 2.7 m/s (1985).
The wettest June on record was 2022 with 184 mm. On average, June sees 103 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Sylvan Lake behaves each June, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for June specifically, along with year-by-year records and how the month has changed over the decades.
